Rotary cutter



Oct. 16, 1928.

L. E. PARENT ROTARY CUTTER Filed May 3, 1927 2 sheets-sheet 1 Jhr/@nib r.'

Oct. 16, 1928. 1,688,298

L. E. PARENT ROTARY GUTTER Filed May 5, 1927 2 Sheets-Sheet 2 3 4 J @zw/wy.

Patented Oct. 16, 1928.

nirsns'rarss PATENT orifice. j-

LOUIS E. PARENT, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR T CLARElllttOlVi')'` WASTE MANUFACTURING COMPANY, ACORPORATION OF NEW' HAMPSHIRE.

ROTARY Application filed May 3,

My invention relates to rotary cutters.

It has for its object to provide an improved rotary cutter,and more particularly an improved iock cutter. A further object of my invention yis to provide improved cooling means for such a cutter whereby the tern-v practice.

In these drawings,-

Figure 1 is a transverse sectional view oi? a cutter equipped with my improvement;

Fig. 2 is a side elevation, partially in section, of my improved bed.

Fig. 3 is a longitudinal section on line 3-3 ot Fig. 2;

Fig. a is a transverse sectional view on line 1 -l of Fig. 2;

Fig. is a transverse sectional view on line 5-5 of Fig. 2, and

Fig. o is a reduced longitudinal sectional view of the cylinder.

In this illustrative construction I have shown my invention embodied in a {iock cutter oi' the construction described and claimed in my co-pending application, Serial No. 198,458 iled May 3, 1927, the same, however, being provided with improved bed cooling means cooperating in an improved manner with my improved water cooled tool carrying cylinder described in that application.

As to the cooling means of the cylinder, it is believed suiicient to say that the cylinderl is preferably provided with a suitable water inlet 2 at one end thereotl so that water is continuously supplied through a port 3 into a cylindrical chamber 4 within the cyhnder4 and out of that chamber through a port 5 to a discharge 6 at the opposite end ot the cylinder, the inlet 2 and discharge G being on opposite sides or an abutment or plug 7 carried in a pipe 8 which in this construction extends continuously through the cylinder and the arrangement being such that water is caused to iiow into one end of the cylinder and through the latter in such manner as electually to cool the cylinder, and then out at the opposite end of the cylinder.

My improved bed cooling means formlreduce the temperature not only CUTTER. n

bed more in detail, it will be noted that, while ot the construction described and claimed in'my (zo-pending application SerialkNo. 187,570 tiled Apr. 29, 192.7, the bed is provided with a cooling water inlet 9 at the bottom ot the middle transverse passage 10 therein. Moreover, this passage l0 communicates at yits upper ends with longitudinal passages 11, 12 which in turn communicate with other transverse passages 10 on opposite sides oi' the inlet 9, the passages 10, 11 and 12 extending underneath and on opposite sides of the knife socket 13 of the bed. Thus, water entering through the inlet 9may flow longitudinally of the bed in opposite directions from the inlet to opposite ends or' the bedwith transverse passages 10 connecting the longitudinal passages 11 and 12 in each halt. Moreover, it will be noted that at each of the opposite ends of the bed suitableoutlet pipes 14: and 15 are provided in the tops ot the longitudinal passages 11 and 12. Thus is will be observed that the water entering at the inlet 9 is caused to pass transversely and longitudinally in opposite directions from an inlet at the bottom oi the b-ed and midway between the ends thereof, to theopposite ends of the bed, and there to be discharged 'from the top or" the bed, the advantages of the boty tom inlet and top discharge ot my previous application being thus obtained, but in each halt of the bed. 1

In the operation ot my improved construction,A the cooling water flowing through the bed cooperates with the water flowing through the cylinder, in such manner as to of the bed but of the cylinder as well as ofthe flock and the casings of the mechanism. More particularly, the water entering the bed at its minimum temperature serves to reduce the temperature ot the bed atits middle, i. e. at a i bed, is cooler for the greater part of its travel than the water in the corresponding part of the cylinder, so that it further tends to keep down the temperature as it moves toward its outlets at tlieopposite ends of the hed'. More particularly, the water in the half of the bed adjacent the cylinder outlet is cooler than the water in that portion of the cylinder, so

that as a Iresult the temperature at the end-of the Cutter at which the cylinder discharges is considerably reduced. Considering the other i lhalf of the bed, the temperature at the end of the bed at which the water enters the cylinder' is similarly lowered, this also effecting sonic reduction in the temperature or' the water in the cylinder iiowing to the outlet half ot the device, and thus helping in lowering the terminal ten'iperature. From the angle ofthe bed alone, it will also be clear that the 'middle of the bed being cool and the length 'of travel ofthe cooling water from the center to the opposite bed ends being short, the temperatureotthe bed as a whole is reduced, with a consequent reduction in the temperature of the knives, casing, cylinder and other associated parts as well as of the flock.l These and other advantages of my improved construction will, however, be clearly apparent to those skilled in the art.v

While I have in this application specilic'ally described one embodimentpwhich my in vention may assume in prac-tice, it will be understood that'this form of the sameis used for purposes of illustration only, and that the invention may be modified and embodied in various other forms Without departing from its spirit or the scope of the appended Claims.

Vhat I claim as new and desire to secure by Letters Patent is:

l. In a rotary cutter-comprising a cylinder and! bed, means for maintaining a flow of cooling 'fluid longitudinally of the cylinder,

and means for circulating cooling fluid through the bed having the point of maxi- `mum cooling of the bedbetween the ends of the cylinder and cooling streams flowing from said point to opposite ends of the bed.

2. In a rotary cutter comprising a cylinder and bed, means'tor maintaining a llow of cooling `fluid longitudinally of the cylinder, and cooling means for the bed having the cooling fluid entering the latter midway between the ends of the cylinder and discharg ingv at the oppositel ends thereof.

3. In a 'rotary cutter comprising a cylinder and bed, means Jfor maintaining a flow of *cooling iiuid longitudinally -of the cylinder,

and cooling means for the vbed entering the bed between the ends of the cylinder and at the bottom of the bedand discharging at the opposite ends of the cylinder at the top .of the bed. l

e. In a rotary critter' comprising a lcylinder and hed, cooling means delivering cooling 'water from end to end of the cylinder, and

cooling means for lthe bed having an outlet at. the outlet end oi. the cylinder and an inlet nearer the inlet end ot the'cylinder.

A5. In a rotary cutter comprising aI cylinder'and bed, cooling means delivering coolingy water from end to end of the cylinder, and cooling inea-ns for the bed having an outlet at the outlet end of the cylinder and an inlet nearer the inlet end of the cylinder, said bed inlet being at the bottom of the `bed and said bed outlet being at the top of the bed.

6. In a rotary cutter comprising a cylinder andbed, cooling means delivering water from end to end of the cylinder, and cooling means for thebed having an inlet, Voutlets at the outlet'end of the cylinder, and a second. set of outlets at the inlet end of the cylinder.

7. In a rotary cutter comprising a cylinder and bed, cooling incans'delivering water from end to end of the cylinder, and cooling means for the bed having an inlet and having outlets at the opposite ends ot the cylinder and equally spaced from the bed inlet.

8. In a rotary cutter comprising a cylinder and bed, cooling means for the cylinder delivering cooling water from end to end of the cylinder, and. cooling means deliveringY cooling water transversely and longitudinally of 'the bed in opposite directions from a point be- Vhaving inletineans between yits ends and Qutlets at its opposite ends each communicating withsaid inlet means and equally spaced from said inlet'means. Y

12. A water cooled bed for rotary cutters Y having inlet means between its ends and outlets at its opposite ends, said outlets being disposed at levels substantially. above said inlet means.

13. A water cooled bed for rotary cutters having cooperating longitudinal and transverse passages, inlet means connected to one of the transverse passages between the ends et said bed, and outlet menas connected to said longitudinal passages at opposite ends of said bed. n

A water cooled bed for rotary cutters having cooperating longitudinal and transiso verse passages, inlet means connected to one of the transverse passages between the ends of said bed, and outlet means connected to said longitudinal passages at opposite ends of said bed, said outlets being disposed substantially above said inlet means.

15. A water cooled bed for rotary cutters having a bed socket therein, cooling water passage means for cooling the sides and bottom of said socket, inlet meanseonneeted to said cooling` means substantially midway between the ends of the socket, and outlets communicating with said cooling means at the op posite ends of the socket.

In testimony whereof I affix my signature.

LOUIS E. PARENT. 

